Hi Tigger6333, http://www.Prometheanworld.com doesn’t have any user accounts, are you referring to http://www.PrometheanPlanet.com at all?
To change your default email address you will need to fill in a form on the below link: http://goo.gl/j3AT8S
Please also provide the user name, email address used to create the account and email address you would like to change this to.
I hope this information helps.
Case – 00490792